Introducing a "Collection Book" feature in EA FC 25 could be transformative. This would allow players to store their duplicate items, creating a comprehensive library of all collected cards. Players could view stats, chemistry, and even exchange duplicates for valuable rewards like coins, packs, or special player items. This would not only reduce clutter, but also give players a greater sense of progression and accomplishment as they fill out their collection.

The handling of icons and legends could use some refinement. Currently, they are treated like regular players, with individual chemistry links and stats. In EA FC 25, allowing players to unlock "Icon Managers" - special cards that provide unique chemistry boosts and abilities to icons in their squad - would add more depth and strategy to building teams around these legendary players.

Introducing an "Infinite Rewards" system in EA FC 25 could keep players engaged for longer. This could take the form of a weekly or daily challenge system, where players can earn coins, packs, or even special player items for accomplishing in-game milestones like matches played, goals scored, or other achievements. This would give players a constant sense of progression and motivation to continue playing.

Implementing a system in EA FC 25 where players are rewarded for finishing matches, even if they end in a draw, could improve the overall experience. This could involve a small reward, such as a pack or coins, for every completed match. Additionally, penalizing players who quit a match before it's over, perhaps with a temporary matchmaking ban or reduced rewards, would encourage players to stick with their games and provide a more enjoyable experience.

The addition of a single, ultimate end-game Evolution card that players can work towards in EA FC 25 could be a compelling long-term goal. This card could be the culmination of all the Evolutions in the game, combining the best attributes and abilities of multiple players into a single, super-powered card. Unlocking and upgrading this card would require a significant investment of time and resources, but the payoff would be a truly unique and powerful card that sets the player apart from the rest of the Ultimate Team community.